[media] siano: break it into common, mmc and usb

siano is, in fact, 2 drivers: one for MMC and one for USB, plus
a common bus-independent code. Break it accordingly.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/mmc/siano/Makefile b/drivers/media/mmc/siano/Makefile
new file mode 100644
index 0000000..0e01f97
--- /dev/null
+++ b/drivers/media/mmc/siano/Makefile
@@ -0,0 +1,6 @@
+obj-$(CONFIG_SMS_SDIO_DRV) += smssdio.o
+
+ccflags-y += -Idrivers/media/dvb-core
+ccflags-y += -Idrivers/media/common/siano
+ccflags-y += $(extra-cflags-y) $(extra-cflags-m)
+